--- /dev/null
+/*
+ * acme-acqua.dts - Device Tree file for Acqua A5 Board
+ *
+ * Copyright (C) 2014 Atmel,
+ * 2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * 2020 Sergio Tanzilli <tanzilli@acmesystems.it>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+#include "sama5d31.dtsi"
+
+/ {
+ model = "Acme Systems Acqua SOM";
+ compatible = "acme,acqua", "atmel,sama5d3", "atmel,sama5";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ bootargs = "mem=256M console=ttyS0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait consoleblank=0";
+ };
+
+ memory {
+ reg = <0x20000000 0x10000000>;
+ };
+
+ clocks {
+ slow_xtal {
+ clock-frequency = <32768>;
+ };
+
+ main_xtal {
+ clock-frequency = <12000000>;
+ };
+ };
+
+ ahb {
+ apb {
+ hlcdc: hlcdc@f0030000 {
+ status = "disabled";
+ hlcdc-display-controller {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb888_alt>;
+ port@0 {
+ hlcdc_panel_output: endpoint@0 {
+ remote-endpoint = <&panel_input>;
+ };
+ };
+ };
+ };
+
+ /* MicroSD mounted on the SOM */
+
+ mmc0: mmc@f0000000 {
+ pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_cd>;
+ status = "okay";
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
+ /* Optional MicroSD to mount on the carrier board */
+
+ mmc1: mmc@f8000000 {
+ pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3 &pinctrl_mmc1_cd>;
+ status = "disabled";
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ spi0: spi@f0004000 {
+ cs-gpios = <&pioD 13 0>, <0>, <0>, <&pioD 16 0>;
+ status = "disabled";
+ };
+
+ can0: can@f000c000 {
+ status = "disabled";
+ };
+
+ tcb0: timer@f0010000 {
+ timer0: timer@0 {
+ compatible = "atmel,tcb-timer";
+ reg = <0>;
+ };
+
+ timer1: timer@1 {
+ compatible = "atmel,tcb-timer";
+ reg = <1>;
+ };
+ };
+
+ i2c0: i2c@f0014000 {
+ pinctrl-0 = <&pinctrl_i2c0_pu>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@f0018000 {
+ status = "disabled";
+ };
+
+ macb1: ethernet@f802c000 {
+ compatible = "atmel,sama5d3-macb", "cdns,at91sam9260-macb", "cdns,macb";
+
+ status = "okay";
+ phy-mode = "rmii";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nvmem-cells = <ð0_addr>;
+ nvmem-cell-names = "mac-address";
+
+ phy0: ethernet-phy@1 {
+ interrupt-parent = <&pioE>;
+ interrupts = <30 IRQ_TYPE_EDGE_FALLING>;
+ reg = <1>;
+ };
+
+ /*ethernet-phy@1 {
+ reg = <0x1>;
+ };*/
+ };
+
+ /* Bit banging internal I2C to manage the AT24MAC402 chip */
+
+ i2c3@ {
+ compatible = "i2c-gpio";
+ gpios = <&pioE 1 0 /* SDA */
+ &pioE 2 0 /* SCK */
+ >;
+ i2c-gpio,delay-us = <4>; /* ~178 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* EEPROM contains the eth0 MAC address */
+
+ eeprom@58 {
+ compatible = "atmel,24mac402";
+ pagesize = <256>;
+ read-only;
+ reg = <0x58>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ eth0_addr: eth-mac-addr@9A {
+ reg = <0x0 0x06>;
+ };
+ };
+ };
+
+ pwm0: pwm@f002c000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm0_pwmh0_0 &pinctrl_pwm0_pwmh1_0>;
+ status = "disabled";
+ };
+
+ usart0: serial@f001c000 {
+ status = "okay";
+ };
+
+ usart1: serial@f0020000 {
+ pinctrl-0 = <&pinctrl_usart1 &pinctrl_usart1_rts_cts>;
+ status = "disabled";
+ };
+
+ uart0: serial@f0024000 {
+ status = "disabled";
+ };
+
+
+ spi1: spi@f8008000 {
+ cs-gpios = <&pioC 25 0>;
+ status = "disabled";
+ };
+
+ adc0: adc@f8018000 {
+ atmel,adc-vref = <3300>;
+ atmel,adc-channels-used = <0xfe>;
+ pinctrl-0 = <
+ &pinctrl_adc0_adtrg
+ &pinctrl_adc0_ad1
+ &pinctrl_adc0_ad2
+ &pinctrl_adc0_ad3
+ &pinctrl_adc0_ad4
+ &pinctrl_adc0_ad5
+ &pinctrl_adc0_ad6
+ &pinctrl_adc0_ad7
+ >;
+ status = "disabled";
+ };
+
+ i2c2: i2c@f801c000 {
+ dmas = <0>, <0>; /* Do not use DMA for i2c2 */
+ pinctrl-0 = <&pinctrl_i2c2_pu>;
+ status = "disabled";
+ };
+
+
+ dbgu: serial@ffffee00 {
+ status = "okay";
+ };
+
+ pinctrl@fffff200 {
+ board {
+ pinctrl_i2c0_pu: i2c0_pu {
+ atmel,pins =
+ <AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
+ <AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_i2c2_pu: i2c2_pu {
+ atmel,pins =
+ <AT91_PIOA 18 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>,
+ <AT91_PIOA 19 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_key_gpio: key_gpio_0 {
+ atmel,pins =
+ <AT91_PIOE 29 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+
+ pinctrl_mmc0_cd: mmc0_cd {
+ atmel,pins =
+ <AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+
+ pinctrl_mmc1_cd: mmc1_cd {
+ atmel,pins =
+ <AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+
+ pinctrl_usba_vbus: usba_vbus {
+ atmel,pins =
+ <AT91_PIOE 9 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>; /* PE9, conflicts with A9 */
+ };
+ };
+ };
+ };
+
+ usb0: gadget@500000 {
+ status = "okay";
+ };
+
+ usb1: ohci@600000 {
+ status = "okay";
+ };
+
+ usb2: ehci@700000 {
+ status = "okay";
+ };
+
+ };
+
+
+ panel: panel {
+ /* compatible = "acme,43inch", "simple-panel"; */
+ compatible = "acme,50inch", "simple-panel";
+ /* compatible = "acme,70inch", "simple-panel"; */
+
+ status = "disable";
+
+ port@0 {
+ panel_input: endpoint@0 {
+ remote-endpoint = <&hlcdc_panel_output>;
+ };
+ };
+ };
+
+
+ leds {
+ compatible = "gpio-leds";
+
+ led0 {
+ label = "led0";
+ gpios = <&pioE 3 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led1 {
+ label = "led1";
+ gpios = <&pioE 4 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led2 {
+ label = "led2";
+ gpios = <&pioE 5 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ led3 {
+ label = "led3";
+ gpios = <&pioE 6 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "mmc0";
+ default-state = "off";
+ };
+ };
+};
--- /dev/null
+Acme Systems Acqua A5
+
+Intro
+=====
+
+The Acqua A5 is a system on module based on the Microchip SAMA5D31 SoC:
+
+ https://www.acmesystems.it/acqua
+
+The files here support configurations that build a microSD image for a
+minimal system that can be accessed through the serial console. You will
+need an USB-to-serial interface in order to access that console from
+your computer:
+
+ https://www.acmesystems.it/DPI
+
+How to build the image
+======================
+
+If you have an Acqua module with 256 MiB of RAM, type:
+
+$ make acmesystems_acqua_a5_256mb_defconfig
+
+If you have the 512 MiB version, type instead:
+
+$ make acmesystems_acqua_a5_512mb_defconfig
+
+You can optionally tweak the configuration and add packages by typing:
+
+$ make menuconfig
+
+Then, proceed with the build:
+
+$ make
+
+How to write the microSD card
+=============================
+
+The system image is the file "sdcard.img" in the "output/images"
+directory. Write it to the card by invoking:
+
+$ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M
+
+where `sdX' is the block device representing the microSD card.
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